Finding the Fourth Proportional to 107.79, 148.75 and 58.67
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Solution
The fourth proportional to 107.79, 148.75 and 58.67 is: 80.96
Step by Step Solution
- Step 1: Write the proportion equation
107.79 : 148.75 = 58.67 : x - Step 2: Convert to fraction form
107.79/148.75 = 58.67/x - Step 3: Cross multiply
107.79x = 148.75 × 58.67 - Step 4: Simplify right side
107.79x = 8,727.05 - Step 5: Solve for x
x = 8,727.05/107.79 - Step 6: Final answer
x = 80.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.